vtk_mesh_quadric_decimation.h

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#pragma once
 
#include <pcl/surface/processing.h>
#include <pcl/surface/vtk_smoothing/vtk.h>
 
namespace pcl
{
  /** \brief PCL mesh decimation based on vtkQuadricDecimation from the VTK library.
    * Please check out the original documentation for more details on the inner workings of the algorithm
    * Warning: This wrapper does two fairly computationally expensive conversions from the PCL PolygonMesh
    * data structure to the vtkPolyData data structure and back.
    */
  class PCL_EXPORTS MeshQuadricDecimationVTK : public MeshProcessing
  {
    public:
      /** \brief Empty constructor */
      MeshQuadricDecimationVTK ();
 
      /** \brief Set the percentage of faces that should be removed.
        * \param[in] factor the factor
        */
      inline void
      setTargetReductionFactor (float factor)
      {
        target_reduction_factor_ = factor;
      }
 
      /** \brief Get the target reduction factor */
      inline float
      getTargetReductionFactor () const
      {
        return target_reduction_factor_;
      }
 
    protected:
      void
      performProcessing (pcl::PolygonMesh &output) override;
 
    private:
      float target_reduction_factor_{0.5f};
 
      vtkSmartPointer<vtkPolyData> vtk_polygons_;
  };
}